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it seems like there are alot of people weak at QR. I found this formula sheet for trig. online
http://faculty.prairiestate.edu/skifowit/htdocs/sheets/b01.pdf
the first 4 things on the left column should be useful as well as the coordinate system on the top right (of course you can figure out the values w/out memorizing, but i think its good to have them memorized for speed for those who are slow at math).
hope it helps. thats probably all you have to know for trig part of QR and possibly law of sine.
http://faculty.prairiestate.edu/skifowit/htdocs/sheets/b01.pdf
the first 4 things on the left column should be useful as well as the coordinate system on the top right (of course you can figure out the values w/out memorizing, but i think its good to have them memorized for speed for those who are slow at math).
hope it helps. thats probably all you have to know for trig part of QR and possibly law of sine.
